Video South has developed a standard pattern for fitting out observation suites with cameras, microphones, recording and intercom.
In the control room, observers can manipulate two or three cameras with joystick operation and can record a picture from any two cameras operating simultaneously. They listen to clear audio and can view the session both on a large colour monitor and, usually, via a one-way mirror. They have a push-to-talk microphone, which transmits only to secret in-ear intercoms worn by one or more participants in the therapy room adjacent.
The therapy area is fitted with discreet dome cameras. These have full rotation and tilt, 270 degrees in every direction. They are almost silent and lens movements or zooming cannot be seen. Flat, planar microphones on the ceiling ensure clear, intelligible speech even from children on the floor.